MITSF / Mitsui & Co., Ltd. - SEC Filings, Annual Report, Proxy Statement

Mitsui & Co., Ltd.
US ˙ OTCPK ˙ JP3893600001

Basic Stats
LEI 2NRSB4GOU9DD6CNW5R48
CIK 67099
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Mitsui & Co., Ltd.
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
May 6, 2024 SC 13D/A

NMG / Nouveau Monde Graphite Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A 1 tm2413559d1sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* NOUVEAU MONDE GRAPHITE INC. (Name of Issuer) Common Shares, no par value (Title of Class of Securities) 66979W842 (CUSIP Number) Mr. Katsuto Kawahara, General Manager Advanced Materials Division, Performance Mate

May 6, 2024 EX-99.1

SUBSCRIPTION AGREEMENT

EX-99.1 2 tm2413559d1ex1.htm EXHIBIT 1 Exhibit 1 THE SECURITIES BEING SUBSCRIBED HEREUNDER OR ISSUABLE UPON EXERCISE OF SUCH SECURITIES HAVE NOT BEEN AND WILL NOT BE REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “U.S. SECURITIES ACT”), OR UNDER ANY OTHER APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES, AND MAY NOT BE OFFERED OR SOLD IN THE UNITED STATES OR

May 6, 2024 EX-99.2

WARRANT CERTIFICATE

EX-99.2 3 tm2413559d1ex2.htm EXHIBIT 2 Exhibit 2 WARRANT CERTIFICATE THIS WARRANT AND THE SECURITIES ISSUABLE UPON EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “U.S. SECURITIES ACT”). THIS WARRANT MAY NOT BE EXERCISED IN THE UNITED STATES OR BY OR ON BEHALF OF A U.S. PERSON OR PERSON IN THE UNITED STATES UNLESS THIS WARRANT AND THE SECURI

May 6, 2024 EX-99.3

Investor Rights Agreement

EX-99.3 4 tm2413559d1ex3.htm EXHIBIT 3 Exhibit 3 Investor Rights Agreement THIS Investor Rights Agreement (this “Agreement”) is made and entered into this 2nd day of May, 2024, by and between Nouveau Monde Graphite Inc., a Canadian corporation governed by the Canada Business Corporations Act (“NMG”) and Mitsui & Co., Ltd., a Japanese corporation (“Mitsui”) (NMG and Mitsui being hereinafter collect

April 10, 2024 SC 13D

ATLX / Atlas Lithium Corporation / MITSUI & CO LTD Activist Investment

SC 13D 1 formsc13d.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. * ATLAS LITHIUM CORPORATION (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 105861306 (CUSIP Number) Mr. Ryo Shibuya, General Manager Battery Raw Materials Business Dept., New Metals & Aluminium

April 10, 2024 EX-3

CERTIFICATE

EX-3 2 ex3.htm Exhibit 3 ADDRESS: 2-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, 100-8631 JAPAN 70-3833-6830 IN REPLY PLEASE ADDRESS TO New Metals & Aluminium DIV. To Atlas Lithium Corporation: CERTIFICATE I have the honor to deliver you this certificate, in the capacity of the Representative Director, Executive Managing Officer of Mitsui & Co. Ltd., a company duly incorporated under the laws of Japan

October 17, 2023 SC 13G/A

THRN / Thorne Healthtech Inc / MITSUI & CO LTD - SC 13G/A Passive Investment

SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Thorne Healthtech, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 885260 109 (CUSIP Number) October 16, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule

February 10, 2023 SC 13G/A

THRN / Thorne Healthtech Inc / MITSUI & CO LTD - SC 13G/A Passive Investment

SC 13G/A 1 d217473dsc13ga.htm SC 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Thorne Healthtech, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 885260 109 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropr

November 18, 2022 EX-99.4

FRAMEWORK AGREEMENT

Exhibit 4 EXECUTION VERSION FRAMEWORK AGREEMENT This Framework Agreement (this ?Agreement?), dated as of October 19, 2022, at 6:00 p.

November 18, 2022 EX-99.5

ADDRESS: 2-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, 100-8631 JAPAN 03-3285-1111 IN REPLY PLEASE ADDRESS TO Advanced Materials DIV.

Exhibit 5 ADDRESS: 2-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, 100-8631 JAPAN 03-3285-1111 IN REPLY PLEASE ADDRESS TO Advanced Materials DIV.

November 18, 2022 EX-99.2

NOUVEAU MONDE GRAPHITE INC. as the Corporation MITSUI & CO., LTD. as the Holder UNSECURED CONVERTIBLE NOTE NOVEMBER 8, 2022

Exhibit 2 UNLESS PERMITTED UNDER SECURITIES LEGISLATION, THE HOLDER OF THIS SECURITY MUST NOT TRADE THIS SECURITY NOR THE SECURITIES ISSUABLE UPON THE CONVERSION OF THIS SECURITY BEFORE MARCH 9, 2023.

November 18, 2022 SC 13D

NMG / Nouveau Monde Graphite Inc. / MITSUI & CO LTD - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. NOUVEAU MONDE GRAPHITE INC. (Name of Issuer) Common Shares, no par value (Title of Class of Securities) 66979W842 (CUSIP Number) Mr. Katsuto Kawahara, General Manager Advanced Materials Division, Performance Materials Business Unit Mitsui & Co., Ltd. 2-1, Ote

February 22, 2022 SC 13D/A

VALE / Vale S.A. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* Vale S.A. (Name of Issuer) Common Shares, no par value (Title of Class of Securities) 91912E105(1) (CUSIP Number) Hideaki Konishi, General Manager Iron Ore Division, Mineral & Metal Resources Business Unit Mitsui & Co., Ltd. 2-1, Otemachi 1-Chom

February 22, 2022 EX-99.1

POWER OF ATTORNEY

Exhibit 1 POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints Hideaki Konishi, General Manager, Iron Ore Division, Mineral & Metal Resources Business Unit of Mitsui & Co.

February 9, 2022 SC 13G

THRN / Thorne Healthtech Inc / MITSUI & CO LTD - SC 13G Passive Investment

SC 13G 1 d310884dsc13g.htm SC 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Thorne Healthtech, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 885260 109 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate b

December 21, 2021 EX-99.29

POWER OF ATTORNEY

Exhibit 29 EXECUTION VERSION POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints Takeshi Mitsui, General Manager, Freight Transportation & Lease Business Division, Mobility Business Unit I of Mitsui & Co.

December 21, 2021 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 12 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Takeshi Mitsui, General Manager Freight Transportation & Lease Business Division, Mobility Business Unit

March 1, 2019 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 11 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Jiro Yamada, General Manager Second Motor Vehicles Division, Mobility Business Unit I Mitsui &

March 1, 2019 EX-99.27

PENSKE AUTOMOTIVE GROUP, INC. • 2555 TELEGRAPH ROAD • BLOOMFIELD HILLS, MICHIGAN 48302-0954 TELEPHONE: 248 648-2560 • FAX: 248 648-2515 • [email protected]

EX-99.27 Exhibit 27 SHANE M. SPRADLIN Executive Vice President General Counsel and Secretary February 28, 2019 BY EMAIL Mitsui & Co. (U.S.A), Inc. (“Mitsui”) 200 Park Avenue New York, NY 10166 Attention: Yoshimi Namba, Senior Vice President Termination of Services Agreement (Masashi Yamanaka) Ladies and Gentlemen: We refer to that certain Services Agreement entered into as of December 12, 2018 bet

December 14, 2018 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 10 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Jiro Yamada, General Manager Second Motor Vehicles Division, Mobility Business Unit I Mitsui &

December 14, 2018 EX-99.26

POWER OF ATTORNEY

EX-99.26 Exhibit 26 EXECUTION VERSION POWER OF ATTORNEY Know all by these presents, that the undersigned hereby constitutes and appoints Jiro Yamada, General Manager, Second Motor Vehicles Division, Mobility Business Unit I of Mitsui & Co., Ltd., the undersigned’s true and lawful attorney-in-fact to: • execute for and on behalf of the undersigned, and in the undersigned’s capacity as a beneficial

March 27, 2018 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 9 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Masashi Yamanaka, General Manager Second Motor Vehicles Division, Integrated Transportation Syst

March 27, 2018 EX-99.23

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EX-99.23 Exhibit 23 EXECUTION VERSION March 27, 2018 Penske Corporation Penske Automotive Holdings Corp. c/o Penske Corporation 2555 Telegraph Road Bloomfield Hills, Michigan 48302 Attention: General Counsel Telecopy: (248) 648-2511 Re: Second Amendment of PAG Stockholders Agreement Ladies and Gentlemen: Reference is made to the Stockholders Agreement, dated as of July 30, 2013 (the “PAG Stockhold

March 27, 2018 EX-99.22

PURCHASE AGREEMENT by and among MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., PENSKE AUTOMOTIVE GROUP, INC. dated as of March 27, 2018 TABLE OF CONTENTS Page ARTICLE I SALE AND PURCHASE OF SECURITIES 1 Section 1.1 The Purchase 1 Section 1.2 Purcha

EX-99.22 Exhibit 22 STRICTLY CONFIDENTIAL EXECUTION VERSION PURCHASE AGREEMENT by and among MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., and PENSKE AUTOMOTIVE GROUP, INC. dated as of March 27, 2018 TABLE OF CONTENTS Page ARTICLE I SALE AND PURCHASE OF SECURITIES 1 Section 1.1 The Purchase 1 Section 1.2 Purchase Price Per Share 1 Section 1.3 The Closing 2 Section 1.4 Actions at the Closing 2 Se

February 13, 2018 SC 13G/A

HCM / Hutchison China MediTech Limited / MITSUI & CO LTD - SCHEDULE 13G - AMENDMENT NO 1 Passive Investment

SC 13G/A 1 d539674dsc13ga.htm SCHEDULE 13G - AMENDMENT NO 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Hutchison China MediTech Limited (Name of Issuer) Ordinary Shares, par value US$1.00 per share (Title of Class of Securities) 44842L103(1) (CUSIP Number) December 31, 2017 (Date of Event Which R

October 23, 2017 EX-99.20

PURCHASE AGREEMENT by and among MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., PENSKE AUTOMOTIVE HOLDINGS CORP. dated as of October 20, 2017 TABLE OF CONTENTS Page ARTICLE I SALE AND PURCHASE OF SECURITIES 1 Section 1.1 The Purchase 1 Section 1.2 P

EX-99.20 Exhibit 20 EXECUTION VERSION PURCHASE AGREEMENT by and among MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., and PENSKE AUTOMOTIVE HOLDINGS CORP. dated as of October 20, 2017 TABLE OF CONTENTS Page ARTICLE I SALE AND PURCHASE OF SECURITIES 1 Section 1.1 The Purchase 1 Section 1.2 Purchase Price Per Share 2 Section 1.3 The Closing 2 Section 1.4 Actions at the Closing 2 Section 1.5 Legend

October 23, 2017 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 8 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Masashi Yamanaka, General Manager Second Motor Vehicles Division, Integrated Transportation Syst

October 23, 2017 EX-99.21

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EX-99.21 Exhibit 21 EXECUTION VERSION October 20, 2017 Penske Corporation Penske Automotive Holdings Corp. c/o Penske Corporation 2555 Telegraph Road Bloomfield Hills, Michigan 48302 Attention: General Counsel Telecopy: (248) 648-2511 Re: Amendment of PAG Stockholders Agreement Ladies and Gentlemen: Reference is made to the Stockholders Agreement, dated as of July 30, 2013 (the “PAG Stockholders A

August 24, 2017 EX-1

List of Executive Officers and Directors of BNDESPAR

Exhibit 1 List of Executive Officers and Directors of BNDESPAR The following information is provided for each of the directors and executive officers of BNDESPAR as of the date of the event which requires the filing of this statement, August 14, 2017: · name, · residence or business address, · present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted, and All of the following persons are citizens of the Federative Republic of Brazil.

August 24, 2017 SC 13D

VALE / Vale S.A. / MITSUI & CO LTD - SC 13D Activist Investment

SC 13D 1 a17-202741sc13d.htm SC 13D SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. ) Vale S.A. (Name of Issuer) Common Shares, no par value (Title of Class of Securities) 91912E105(1) (CUSIP Number) Gueitiro Matsuo Genso Avenida das Américas, 700 — Bloco 8 — Loja 318 22640-100 Rio de Janeiro, RJ, Brazil Tel. 55 21 381

August 24, 2017 EX-2

JOINT FILING AGREEMENT

Exhibit 2 JOINT FILING AGREEMENT THIS JOINT FILING AGREEMENT (this “Agreement”) is made and entered into as of this 14th day of August 2017, by and among BNDES Participações S.

February 13, 2017 SC 13G

HCM / Hutchison China MediTech Limited / MITSUI & CO LTD - SCHEDULE 13G Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Hutchison China MediTech Limited (Name of Issuer) Ordinary Shares, par value US$1.00 per share (Title of Class of Securities) 44842L103(1) (CUSIP Number) December 31, 2016 (Date of Event Which Requires Filing of this Statement) Check the appr

February 13, 2017 SC 13D/A

BIOA / BioAmber Inc. / MITSUI & CO LTD - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D/A (Rule 13d-102) INFORMATION INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 1)* BIOAMBER INC. (Name of Issuer) COMMON STOCK, $0.01 PAR VALUE PER SHARE (Title of Class of Securities) 09072Q 106 (CUSIP Number) Yoichiro Miwa Mitsui

January 22, 2015 SC 13G

ATEN / A10 Networks, Inc. / MITSUI & CO LTD - SC 13G Passive Investment

SC 13G 1 d856188dsc13g.htm SC 13G SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (Amendment No. )* A10 NETWORKS, INC. (Name of Issuer) Common Stock (Title of Class of Securities) 002121101 (CUSIP Number) December 31, 2014

May 30, 2014 SC 13G/A

WIFI / Boingo Wireless, Inc. / MITSUI & CO LTD - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* Boingo Wireless, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 09739C102 (CUSIP Number) April 4, 2014 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designa

February 14, 2014 SC 13G/A

WIFI / Boingo Wireless, Inc. / MITSUI & CO LTD - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Boingo Wireless, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 09739C102 (CUSIP Number) December 31, 2013 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to des

July 30, 2013 SC 13D/A

PAG / Penske Automotive Group, Inc. / MITSUI & CO LTD - AMENDMENT NO.7 TO SCHEDULE 13D Activist Investment

Amendment No.7 to Schedule 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 7 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Fumiaki Miyamoto, General Manager First Motor Vehicles Division Integrated

July 30, 2013 EX-99.19

STOCKHOLDERS AGREEMENT BY AND AMONG MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., PENSKE CORPORATION, PENSKE AUTOMOTIVE HOLDINGS CORP. Dated as of July 30, 2013 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS Section 1.1 Definitions 4 Section 1.2 Rul

EX-99.19 Exhibit 19 Execution Version STOCKHOLDERS AGREEMENT BY AND AMONG MITSUI & CO., LTD., MITSUI & CO. (U.S.A.), INC., PENSKE CORPORATION, AND PENSKE AUTOMOTIVE HOLDINGS CORP. Dated as of July 30, 2013 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS Section 1.1 Definitions 4 Section 1.2 Rules of Construction 5 ARTICLE II VOTING AGREEMENTS Section 2.1 Voting Agreement of Penske 6 Section 2.2 Votin

May 20, 2013 SC 13D

BIOA / BioAmber Inc. / MITSUI & CO LTD - SCHEDULE 13D Activist Investment

Schedule 13D SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D (Rule 13d-102) INFORMATION INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. )* BIOAMBER INC. (Name of Issuer) COMMON STOCK, $0.01 PAR VALUE PER SHARE (Title of Class of Securities) 09072Q 106 (CUSIP Number) Yoichiro Miwa Mitsui & Co. Global

February 14, 2013 SC 13G/A

WIFI / Boingo Wireless, Inc. / MITSUI & CO LTD - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Boingo Wireless, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 09739C102 (CUSIP Number) December 31, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to des

February 14, 2012 SC 13G

WIFI / Boingo Wireless, Inc. / MITSUI & CO LTD - SCHEDULE 13G Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Boingo Wireless, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 09739C102 (CUSIP Number) May 3, 2011 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designat

April 25, 2011 EX-99.(A)(II)

MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha) CITIBANK, NA., as Depositary All HOLDERS OF AMERICAN DEPOSITARY RECEIPTS AND EUROPEAN DEPOSITARY RECEIPTS Amendment No. 1 Deposit Agreement Dated as of January 4, 2006 . AMENDMENT NO. 1 TO DEPOSIT A

Exhibit (a)(ii) MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha) and CITIBANK, NA., as Depositary and All HOLDERS OF AMERICAN DEPOSITARY RECEIPTS AND EUROPEAN DEPOSITARY RECEIPTS Amendment No. 1 To Deposit Agreement Dated as of January 4, 2006 . AMENDMENT NO. 1 TO DEPOSIT AGREEMENT AMENDMENT NO. 1 TO DEPOSIT AGREEMENT, is made as of January 4, 2006 (the "2006 Amendment"), by and among Mitsui &

April 25, 2011 424B3

AMERICAN DEPOSITARY RECEIPT For Common Stock of MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha) (Incorporated under the Laws of Japan)

Filed Pursuant to Rule 424(b)(3) Registration Statement on Form F-6 Registration No.

April 25, 2011 15F-12G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15F CERTIFICATION OF A FOREIGN PRIVATE ISSUER’S TERMINATION OF REGISTRATION OF A CLASS OF SECURITIES UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ITS TERMIN

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15F CERTIFICATION OF A FOREIGN PRIVATE ISSUER?S TERMINATION OF REGISTRATION OF A CLASS OF SECURITIES UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ITS TERMINATION OF THE DUTY TO FILE REPORTS UNDER SECTION 13(a) OR SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number

April 25, 2011 F-6 POS

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM F-6 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933, AS AMENDED FOR AMERICAN DEPOSITARY SHARES EVIDENCED BY AMERICAN DEPOSITARY RECEIPTS Mitsui Bussan

As filed with the Securities and Exchange Commission on April 25, 2011 Registration No.

April 25, 2011 EX-99.(A)(I)

MITSUI & CO., LTD. CITIBANK, N.A., As Depositary, ALL HOLDERS OF AMERICAN DEPOSITARY SHARES Amendment No. 2 Deposit Agreement Dated as of__________, 2011

Exhibit (a)(i) MITSUI & CO., LTD. AND CITIBANK, N.A., As Depositary, AND ALL HOLDERS OF AMERICAN DEPOSITARY SHARES Amendment No. 2 to Deposit Agreement Dated as of, 2011 Table of Contents Page ARTICLE I DEFINITIONS 3 SECTION 1.01 Definitions 3 SECTION 1.02 Effective Date 3 SECTION 1.03 New Definitions 3 ARTICLE II AMENDMENTS TO AMENDED AND SUPPLEMENTED ORIGINAL DEPOSIT AGREEMENT 4 SECTION 2.01 Dep

April 25, 2011 EX-99.(B)

Exhibit (b)

Exhibit (b) 388 Greenwich Street 14th Floor New York, NY 10013 November 28, 2007 MITSUI & CO.

April 25, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Stake in Pharmaceutical and Chemical Company, MBS Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 Fo

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Stake in Pharmaceutical and Chemical Company, MBS Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 25, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome C

April 15, 2011 25

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(b) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number: 0-9929 MITSUI BUSSAN KABUSHIKI KAISHA (The NASDAQ Stock Market LLC) (Exact name of Issuer as specified in its charter, and name of Exchange where security is listed and/or regist

April 7, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Stake in Integrated Healthcare Holdings Sdn. Bhd Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Stake in Integrated Healthcare Holdings Sdn. Bhd Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 7, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, T

April 5, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Result of Participation in a Share Purchase Program through Public Tender Offering by T-Gaia Corporation Pursuant to Rule 13a-16 or 15d-16 of the Secu

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Result of Participation in a Share Purchase Program through Public Tender Offering by T-Gaia Corporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 5, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into Engl

April 5, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co., Ltd. To Delist American Depositary Shares (2) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co., Ltd. To Delist American Depositary Shares (2) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 5, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

April 1, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui established a management subsidiary in the U.K for its existing LNG investments Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Ac

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui established a management subsidiary in the U.K for its existing LNG investments Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 1, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemach

March 31, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divested certain stake in the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 19

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divested certain stake in the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 31, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-ch

March 30, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Approves Funding for Expansion of Western Australian Iron Ore Operations - Expanding Supply Capacity to Accommodate Increase in Medium and Long

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Approves Funding for Expansion of Western Australian Iron Ore Operations - Expanding Supply Capacity to Accommodate Increase in Medium and Long Term Demand for Iron Ore - Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 30, 2011 Commission File N

March 30, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 30, 2011 C

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 30, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan

March 28, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Acquisition of a Minority Stake in TPV Technology Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Acquisition of a Minority Stake in TPV Technology Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 28, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda

March 11, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Domestic Property “Ohtemachi PAL Building” Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Ma

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Domestic Property ?Ohtemachi PAL Building? Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 11, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

February 28, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in a Share Purchase Program through Public Tender Offering by T-Gaia Corporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exc

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in a Share Purchase Program through Public Tender Offering by T-Gaia Corporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 28, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2

February 18, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 18, 201

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 18, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Ja

February 16, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests interests in Hong Kong International Terminals (“HIT”), and Yantian International Container Terminals (“YICT”) Pursuant to Rule 13a-16

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests interests in Hong Kong International Terminals (?HIT?), and Yantian International Container Terminals (?YICT?) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 16, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of re

February 16, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exc

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 16, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant

February 8, 2011 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) 606827202 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

February 2, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Nine-Month Period ended December 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 2,

Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Nine-Month Period ended December 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 2, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-

January 21, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional investment in IPM Eagle LLP Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 21, 2011 Comm

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional investment in IPM Eagle LLP Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 21, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan (A

January 13, 2011 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Investment in Brazilian Agricultural Production and Grain Distribution Business, Multigrain AG Pursuant to Rule 13a-16 or 15d-16 of the Sec

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Investment in Brazilian Agricultural Production and Grain Distribution Business, Multigrain AG Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 13, 2011 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant's name into

December 27, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to divest certain stake in the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to divest certain stake in the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 27, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi

December 22, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui approved investment for Robe River J/V port expansion in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui approved investment for Robe River J/V port expansion in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 22, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi

December 20, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico (4) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mo

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico (4) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 20, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyod

December 17, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Dissolution of United Harvest Joint Venture with CHS Inc. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of De

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Dissolution of United Harvest Joint Venture with CHS Inc. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 17, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tok

December 3, 2010 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A (Amendment No.2)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A (Amendment No.2) ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2010 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIE

December 3, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co., Ltd. To Delist American Depositary Shares Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Dece

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co., Ltd. To Delist American Depositary Shares Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 3, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

December 3, 2010 EX-99.1

Mitsui & Co., Ltd. Future Net Remaining Reserves Attributable to Certain Interests In Australia, New Zealand and Indonesia SEC Parameters As of December 31, 2009

Exhibit 99.1 Mitsui & Co., Ltd. Estimated Future Net Remaining Reserves Attributable to Certain Interests In Australia, New Zealand and Indonesia SEC Parameters As of December 31, 2009 /s/ Herman G. Acu?a /s/ Harris Ghozali Herman G. Acu?a, P.E. Harris Ghozali, P.E. Texas P.E. License No. 92254 Texas P.E. License No. 97664 Managing Senior Vice President?International Senior Vice President?Internat

November 17, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 17, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registran

November 15, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Water Treatment Plant Operation Assets in China by Galaxy NewSpring Pte. Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Excha

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Water Treatment Plant Operation Assets in China by Galaxy NewSpring Pte. Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 15, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1

November 2, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Six-Month Period ended September 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 2,

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Six-Month Period ended September 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 2, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chi

October 13, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Dissolution and liquidation of a subsidiary company Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Dissolution and liquidation of a subsidiary company Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 13, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-

September 30, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Project Finance Agreement for the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange A

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Project Finance Agreement for the natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 30, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

September 24, 2010 CORRESP

ADDRESS: 2-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN HEAD OFFICE Ginza Br, J.P.O. BOX 822, TELEPHONE: TOKYO 100-8631 JAPAN FACSIMILE: 03-3285-7533 03-3285-9819

ADDRESS: 2-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN HEAD OFFICE Ginza Br, J.

September 22, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico (3) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mo

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico (3) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 22, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyo

September 21, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Loan Agreement with a ship-owning company in Singapore Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mon

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Loan Agreement with a ship-owning company in Singapore Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 21, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyod

September 15, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Taganito Nickel Project in Philippine Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Septe

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Taganito Nickel Project in Philippine Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 15, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

September 10, 2010 CORRESP

ADDRESS: 2-1, OHTEMACHI 1-CHOME, HEAD OFFICE CHIYODA-KU, TOKYO, Ginza Br, J.P.O. BOX 822, JAPAN TELEPHONE: TOKYO 100-8631 JAPAN FACSIMILE: 03-3285-7533 03-3285-9819

ADDRESS: 2-1, OHTEMACHI 1-CHOME, HEAD OFFICE CHIYODA-KU, TOKYO, Ginza Br, J.P.O. BOX 822, JAPAN TELEPHONE: TOKYO 100-8631 JAPAN FACSIMILE: 03-3285-7533 03-3285-9819 Tokyo, September 10, 2010 Mr. Chris White Branch Chief, Division of Corporate Finance Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549-7010 U. S. A. Re: Mitsui & Co., Ltd. Form 20-F for the fiscal year ende

August 17, 2010 20-F/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F/A (Amendment No. 1) ¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2010 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITI

August 17, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchang

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 17, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

August 13, 2010 EX-13.1

/s/ MASAMI IIJIMA

Certification required by Rule 13a-14(b) and Section 1350 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, Chapter 63 of title 18, United States Code), each of the undersigned officers of Mitsui & Co., Ltd. (the “Company”), hereby certifies, to such officer’s knowledge, that the Company’s annual report on Form 20-F for t

August 13, 2010 EX-11.1

Code of Ethics for Senior Financial Officers and Professionals

Exhibit 11.1 Code of Ethics for Senior Financial Officers and Professionals Article 1. The CEO (Chief Executive Officer), CFO (Chief Financial Officer) and other officers and/or senior professionals of the Company (categorized as “Riji”, “MT (Management)” and/or “MS (Managerial Staff)” by the Working Regulations of the Company) who serve in finance, treasury, accounting, tax and/or financial risk

August 13, 2010 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2010 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

August 13, 2010 EX-99.1

Mitsui & Co., Ltd. Future Net Remaining Reserves Attributable to Certain Interests In Australia, New Zealand and Indonesia SEC Parameters As of December 31, 2009 /s/ Herman G. Acuña /s/ Harris Ghozali Herman G. Acuña, P.E. Harris Ghozali, P.E. Texas

Exhibit 99.1 Mitsui & Co., Ltd. Estimated Future Net Remaining Reserves Attributable to Certain Interests In Australia, New Zealand and Indonesia SEC Parameters As of December 31, 2009 /s/ Herman G. Acu?a /s/ Harris Ghozali Herman G. Acu?a, P.E. Harris Ghozali, P.E. Texas P.E. License No. 92254 Texas P.E. License No. 97664 Managing Senior Vice President?International Senior Vice President?Internat

August 13, 2010 EX-12.2

/s/ JUNICHI MATSUMOTO

Certification of the principal financial officer required by Rule 13a-14(a) Exhibit 12.

August 13, 2010 EX-11.2

Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd.

Exhibit 11.2 Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004 These guidelines apply to all employees and officers of Mitsui & Co., Ltd. (the “Company”). Whenever used in these guidelines, the expression “Employees” includes officers and corporate auditors in addi

August 13, 2010 EX-12.1

/s/ MASAMI IIJIMA

Certification of the principal executive officer required by Rule 13a-14(a) Exhibit 12.

August 10, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Loan Agreement for greenfield second-stage oil refinery in Mosorod, Egypt Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Loan Agreement for greenfield second-stage oil refinery in Mosorod, Egypt Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 10, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemach

August 3, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Sign an Agreement to Integrate its LPG Business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Au

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Sign an Agreement to Integrate its LPG Business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 3, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

August 3, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Three-Month Period ended June 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 3, 2010

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Consolidated Financial Results for the Three-Month Period ended June 30, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 3, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japa

August 2, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Signs Joint Venture Agreement with Hyflux to Enter Water Infrastructure Business in China Pursuant to Rule 13a-16 or 15d-16 of the Securities E

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Signs Joint Venture Agreement with Hyflux to Enter Water Infrastructure Business in China Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 2, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into En

July 23, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico(2) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mon

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The oil spill incident of a drilling rig in the Gulf of Mexico(2) Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 23, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku,

July 1, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Production of Chlor-Alkali with Dow Chemical in Texas, USA Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Production of Chlor-Alkali with Dow Chemical in Texas, USA Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 1, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Ch

June 24, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Submission of matters to a vote of security holders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 24,

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Submission of matters to a vote of security holders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 24, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-000

June 11, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 91st Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 91st Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 11, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

June 11, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report the fiscal year ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 11

Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report the fiscal year ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 11, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyod

May 10, 2010 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mo

Form 6-K/A FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 10, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome

May 7, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mont

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 7, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, To

May 6, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The fire incident of a drilling rig in the Gulf of Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Ma

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The fire incident of a drilling rig in the Gulf of Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 6, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100

April 23, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Result of Third Party Allotment and Joint Mandatory Cash Offer on TPV Technology Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Result of Third Party Allotment and Joint Mandatory Cash Offer on TPV Technology Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 23, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtem

April 5, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Commence Considerations to Integrate its LPG Business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Commence Considerations to Integrate its LPG Business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 5, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiy

April 1, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Development of Phosphorus Ore in Peru Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Development of Phosphorus Ore in Peru Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 1, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, T

March 29, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests shares of United Petroleum Development Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests shares of United Petroleum Development Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 29, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chi

March 12, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Change in Presentation of Total Trading Transactions Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 1

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Change in Presentation of Total Trading Transactions Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 12, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome

March 8, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Project Finance Agreement for Paiton Expansion Project in Indonesia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 193

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Signing of Project Finance Agreement for Paiton Expansion Project in Indonesia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 8, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemac

March 3, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Joint Venture with Nucor Corporation for steel related business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Joint Venture with Nucor Corporation for steel related business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 3, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, T

February 26, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in the Copper Mining Project in Chile Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in the Copper Mining Project in Chile Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 26, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku,

February 26, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice regarding Subscription for Shares of MODEC through Third Party Allotment and Business Alliance with MODEC Pursuant to Rule 13a-16 or 15d-16 of

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice regarding Subscription for Shares of MODEC through Third Party Allotment and Business Alliance with MODEC Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 26, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of regist

February 24, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Proposed Changes of Directors Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 24, 2010 Commission F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Proposed Changes of Directors Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 24, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan (Address o

February 17, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exc

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 17, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2

February 16, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in the Shale gas projects in Pennsylvania Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Febr

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in the Shale gas projects in Pennsylvania Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 16, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

February 10, 2010 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) 606827202 (CUSIP Number) December 31, 2009 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

February 5, 2010 EX-99.19

FORM OF LOCK-UP LETTER AGREEMENT February , 2010

EX-99.19 2 dex9919.htm LOCK-UP LETTER AGREEMENT Exhibit 19 FINAL FORM FORM OF LOCK-UP LETTER AGREEMENT February , 2010 Merrill Lynch, Pierce, Fenner & Smith Incorporated, J.P. Morgan Securities Inc. as Representatives of the several Underwriters to be named in the within-mentioned Purchase Agreement c/o Merrill Lynch, Pierce, Fenner & Smith Incorporated One Bryant Park New York, New York 10036 Re:

February 5, 2010 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 6 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 6 PENSKE AUTOMOTIVE GROUP, INC. (Name of Issuer) Common Stock (Par Value $0.0001 Per Share) (Title of Class of Securities) 909440 10 9 (CUSIP Number) Mr. Masaki Shimomura, General Manager Retail Business Department Second Motor Vehicles Division Motor Busines

February 3, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Shares in Mitsui Oil Exploration Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Fe

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Shares in Mitsui Oil Exploration Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 3, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Toky

February 2, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 2, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

February 2, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 2, 2010

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 2, 2010 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Jap

January 29, 2010 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Possible Acquisition of a Minority Stake in TPV Technology Limited by Conditional Third Party Allotment and Possible Conditional Joint Mandatory Cash

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Possible Acquisition of a Minority Stake in TPV Technology Limited by Conditional Third Party Allotment and Possible Conditional Joint Mandatory Cash Offer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 29, 2010 Commission File Number 09929

December 24, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Purchase of natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Decem

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Purchase of natural-gas-fired power stations in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 24, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

December 4, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Interim Business Report First half of the fiscal year ending March 31, 2010 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 F

Form 6-K Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 24, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests certain U.S. Gulf of Mexico oil & gas assets Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests certain U.S. Gulf of Mexico oil & gas assets Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 24, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemach

November 20, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Resignation of Representative Director, Executive Vice President Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mont

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Resignation of Representative Director, Executive Vice President Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 20, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-

November 16, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 16, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English)

November 4, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 4, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1

September 18, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Subscription to private placement of shares of JA MITSUI LEASING, LTD. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For th

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Subscription to private placement of shares of JA MITSUI LEASING, LTD. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 18, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome C

August 17, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchang

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 17, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

August 4, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 4, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chom

July 17, 2009 EX-12.1

/s/ MASAMI IIJIMA

Exhibit 12.1 CERTIFICATION I, Masami Iijima, certify that: 1. I have reviewed this annual report on Form 20-F of Mitsui & Co., Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to

July 17, 2009 EX-11.2

Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd.

Exhibit 11.2 Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004 These guidelines apply to all employees and officers of Mitsui & Co., Ltd. (the “Company”). Whenever used in these guidelines, the expression “Employees” includes officers and corporate auditors in addi

July 17, 2009 EX-1.2

Rules on Handling Shares Chapter 1 General Provisions

Exhibit 1.2 Established on July 25, 1947 Amended on January 5, 2009 Rules on Handling Shares Chapter 1 General Provisions (Purpose) Article 1 The administrative procedures for the exercise of the rights of shareholders of the Company and matters and fees relating to the handling of shares of the Company shall be governed by the present rules pursuant to the Articles of Incorporation of the Company

July 17, 2009 EX-13.1

/s/ MASAMI IIJIMA

Certification required by Rule 13a-14(b) and Section 1350 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, Chapter 63 of title 18, United States Code), each of the undersigned officers of Mitsui & Co., Ltd. (the “Company”), hereby certifies, to such officer’s knowledge, that the Company’s annual report on Form 20-F for t

July 17, 2009 EX-1.1

THE ARTICLES OF INCORPORATION MITSUI & CO., LTD. (As of June 23, 2009) CHAPTER I GENERAL PROVISIONS

Exhibit 1.1 THE ARTICLES OF INCORPORATION OF MITSUI & CO., LTD. (As of June 23, 2009) CHAPTER I GENERAL PROVISIONS (NAME OF THE COMPANY) Article 1. The name of the Company shall be Mitsui Bussan Kabushiki Kaisha and it shall be styled MITSUI & CO., LTD. in English. (OBJECT OF THE COMPANY) Article 2. The object of the Company shall be to engage in the following business: A. Foreign trade, purchases

July 17, 2009 EX-11.1

Code of Ethics for Senior Financial Officers and Professionals

Exhibit 11.1 Code of Ethics for Senior Financial Officers and Professionals Article 1. The CEO (Chief Executive Officer), CFO (Chief Financial Officer) and other officers and/or senior professionals of the Company (categorized as ?Riji?, ?MT (Management)? and/or ?MS (Managerial Staff)? by the Working Regulations of the Company) who serve in finance, treasury, accounting, tax and/or financial risk

July 17, 2009 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2009 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

July 17, 2009 EX-1.3

The Rules of the Board of Directors

Exhibit 1.3 The Rules of the Board of Directors Amended on September 17 2008 (Purpose) Article 1 Except as otherwise provided in the laws and the Articles of Incorporation of the Company, the matters pertaining to the Board of Directors of the Company shall be governed by these rules. (Person entitled to convene the meeting) Article 2 1. The Board of Directors shall be convened by the Chairman of

July 17, 2009 EX-2.1

MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha) CITIBANK, N.A., As Depositary HOLDERS OF AMERICAN DEPOSITARY RECEIPTS EUROPEAN DEPOSITARY RECEIPTS Deposit Agreement Dated as of October 1, 1982 DEPOSIT AGREEMENT

Exhibit 2.1 MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha) AND CITIBANK, N.A., As Depositary AND HOLDERS OF AMERICAN DEPOSITARY RECEIPTS AND EUROPEAN DEPOSITARY RECEIPTS Deposit Agreement Dated as of October 1, 1982 DEPOSIT AGREEMENT DEPOSIT AGREEMENT dated as of October 1, 1982, among MITSUI & CO., LTD. (Mitsui Bussan Kabushiki Kaisha), a corporation incorporated and existing under the laws

July 17, 2009 EX-12.2

/s/ JUNICHI MATSUMOTO

Certification of the principal financial officer required by Rule 13a-14(a) Exhibit 12.

June 3, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 90th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 90th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 3, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-k

June 3, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report The fiscal year ended March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 3,

Form 6-K Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 8, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mont

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 8, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyo

April 24, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Discovery of Irregular Transactions in the Performance Chemicals Business Unit and the Delayed Collection of Deliverables for These Transactions Pursu

6-K 1 d6k.htm FORM 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Discovery of Irregular Transactions in the Performance Chemicals Business Unit and the Delayed Collection of Deliverables for These Transactions Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 24, 2009 Commission File Number 0992

April 22, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Revisions of Earnings Forecast and Dividend Forecast for the fiscal year ended March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exch

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Revisions of Earnings Forecast and Dividend Forecast for the fiscal year ended March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 22, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into Engli

March 30, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Russia’s Sakhalin II Project marked the commencement of LNG delivery Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Russia’s Sakhalin II Project marked the commencement of LNG delivery Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 30, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda

March 26, 2009 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Cardiovascular Systems, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Cardiovascular Systems, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 141619106 (CUSIP Number) February 25, 2009 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate

March 5, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui’s Long-Term Management Vision: Dynamic Evolution as a 21st Century Global Business Enabler Pursuant to Rule 13a-16 or 15d-16 of the Securities

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui?s Long-Term Management Vision: Dynamic Evolution as a 21st Century Global Business Enabler Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 5, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-

February 27, 2009 CORRESP

ADDRESS: 2-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, TELEPHONE :

Correspondence ADDRESS: 2-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN TELEPHONE : 03-3285-7533 HEAD OFFICE C.

February 25, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of change in the number of shares constituting one unit and amendment to the Articles of Incorporation Pursuant to Rule 13a-16 or 15d-16 of the

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of change in the number of shares constituting one unit and amendment to the Articles of Incorporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 25, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registran

February 17, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exc

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended December 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 17, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into E

February 13, 2009 CORRESP

February 13, 2009

February 13, 2009 Ms. Anne Nguyen Parker Branch Chief, Division of Corporate Finance Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549-7010 U. S. A. Re: Mitsui & Co., Ltd. Form 20-F for the fiscal year ended March 31, 2008 Response Letter dated January 16, 2009 File No. 0-9929 Dear Ms. Parker: We have received the staff?s follow-up comment letter dated January 30, 2009,

February 6, 2009 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mitusi & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Mitusi & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) 606827202 (CUSIP Number) December 31, 2008 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

February 6, 2009 CORRESP

February 6, 2009

Correspondence February 6, 2009 Ms. Anne Nguyen Parker Branch Chief, Division of Corporate Finance Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549-7010 U. S. A. Re: Mitsui & Co., Ltd. Form 20-F for the fiscal year ended March 31, 2008 File No. 0-9929 Dear Ms. Parker: This is in response to your comment letter dated December 5, 2008, relating to our annual report on Fo

February 4, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 4, 2009

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 4, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100

February 4, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 4, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

February 2, 2009 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Interim Business Report First half of the fiscal year ending March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

Form 6-K/A Table of Contents FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.

January 30, 2009 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the six-month period ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

Form 6-K/A FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the six-month period ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 30, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into

January 30, 2009 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of

Form 6-K/A FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 30, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1

January 16, 2009 CORRESP

Mitsui’s Subsidiary Associated Company

Correspondence January 16, 2009 Ms. Anne Nguyen Parker Branch Chief, Division of Corporate Finance Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549-7010 U. S. A. Re: Mitsui & Co., Ltd. Form 20-F for the fiscal year ended March 31, 2008 File No. 0-9929 Dear Ms. Parker: This is in response to your comment letter dated December 5, 2008, relating to our annual report on Fo

January 16, 2009 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Change of President and Chief Executive Officer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 16,

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Change of President and Chief Executive Officer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 16, 2009 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004

December 29, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Subscription to private placement of shares by Mitsui Life Insurance Company Limited. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Subscription to private placement of shares by Mitsui Life Insurance Company Limited. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 26, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtem

December 29, 2008 EX-24.

EX-24.

rrd204141230427.html EXHIBIT 24 STATEMENT APPOINTING DESIGNATED FILER The undersigned entities and individuals (the "Reporting Persons") hereby designate MITSUI & CO. VENTURE PARTNERS II, L.P. (the "Designated Filer") as the designated beneficial owner to make filings of Schedules 13D and 13G (and any amendments thereto) pursuant to Section 13(d) of the Securities Exchange Act of 1934 (the "Exchan

December 19, 2008 CORRESP

December 19, 2008

December 19, 2008 Ms. Anne Nguyen Parker Branch Chief, Division of Corporate Finance Securities and Exchange Commission 100 F. Street, N.E. Washington, D.C. 20549-7010 U. S. A. Re: Mitsui & Co., Ltd. Form 20-F for the fiscal year ended March 31, 2008 File No. 0-9929 Dear Ms. Parker: We have received the staff’s comment letter dated December 5, 2008, relating to our annual report on Form 20-F for t

December 18, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Preferred Securities issued by an overseas special purpose subsidiary owned by Sumitomo Mitsui Financial Group, Inc. Pursuant to Rule 1

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of Preferred Securities issued by an overseas special purpose subsidiary owned by Sumitomo Mitsui Financial Group, Inc. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 18, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation

December 4, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Interim Business Report First half of the fiscal year ending March 31, 2009 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 F

Form 6-K Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.

December 3, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mutual agreement under income tax treaty between Japan and Australia in respect of tax assessment based on transfer pricing taxation in Japan Pursuant

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mutual agreement under income tax treaty between Japan and Australia in respect of tax assessment based on transfer pricing taxation in Japan Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 3, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Tr

November 25, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Expand Capacity at Western Australian Iron Ore Joint Ventures with BHP Billiton Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Expand Capacity at Western Australian Iron Ore Joint Ventures with BHP Billiton Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 25, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, O

November 21, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 21, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into

November 7, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 6, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

November 5, 2008 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Excha

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 5, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1,

November 4, 2008 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 19

Form 6-K/A FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 4, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, O

October 15, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of interest in uranium projects in South Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of interest in uranium projects in South Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 15, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku,

October 7, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Investment in Brazilian Agricultural Business, Multigrain AG Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For t

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional Investment in Brazilian Agricultural Business, Multigrain AG Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 7, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chi

October 1, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of change of Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 1, 2008 Commission Fi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of change of Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 1, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan (Address of

September 2, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The first gas is produced from North West Shelf Project Train 5 production facility Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act o

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer The first gas is produced from North West Shelf Project Train 5 production facility Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 2, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemac

August 28, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Vincent Oil Field Commences Production Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 28, 2008 Commi

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Vincent Oil Field Commences Production Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 28, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan (Ad

August 26, 2008 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) * Sims Group Limited (Name of Issuer) American Depositary Shares representing Ordinary Shares, Par Value A

OMB APPROVAL OMB Number: 3235-0145 Expires: February 28, 2009 Estimated average burden hours per response 10.

August 26, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire Additional Shares in Sims Group Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Au

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire Additional Shares in Sims Group Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 26, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-

August 22, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui transferred its shares in Kyushu Oil Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui transferred its shares in Kyushu Oil Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 22, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100

August 18, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchang

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Quarterly Consolidated Financial Statements for the three-month period ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 18, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Oh

August 5, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 4, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemac

August 4, 2008 EX-11.2

Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004

Exhibit 11.2 Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004 These guidelines apply to all employees and officers of Mitsui & Co., Ltd. (the ?Company?). Whenever used in these guidelines, the expression ?Employees? includes officers and corporate auditors in addi

August 4, 2008 EX-13.1

/s/ SHOEI UTSUDA

Certification required by Rule 13a-14(b) and 18 U.S.C. Section 1350 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, Chapter 63 of title 18, United States Code), each of the undersigned officers of Mitsui & Co., Ltd. (the “Company”), hereby certifies, to such officer’s knowledge, that the Company’s annual report on Form

August 4, 2008 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2008 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

August 4, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Approve A$395 million spending for Robe River J/V port and rail expansion in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Secu

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Approve A$395 million spending for Robe River J/V port and rail expansion in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 4, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into Eng

August 4, 2008 EX-11.1

Code of Ethics for Senior Financial Officers and Professionals

Exhibit 11.1 Code of Ethics for Senior Financial Officers and Professionals Article 1. The CEO (Chief Executive Officer), CFO (Chief Financial Officer) and other officers and/or senior professionals of the Company (categorized as “Riji”, “MT (Management)” and/or “MS (Managerial Staff)” by the Working Regulations of the Company) who serve in finance, treasury, accounting, tax and/or financial risk

August 4, 2008 EX-12.2

/s/ JUNICHI MATSUMOTO

Certification of the principal financial officer required by Rule 13a-14(a) Exhibit 12.

August 4, 2008 EX-12.1

/s/ SHOEI UTSUDA

Certification of the principal executive officer required by Rule 13a-14(a) Exhibit 12.

June 30, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Receipt of a notice of tax assessment based on transfer pricing taxation in Japan Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Receipt of a notice of tax assessment based on transfer pricing taxation in Japan Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 30, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-c

June 20, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Starting deepwater drilling service for Petrobras Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 20, 2

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Starting deepwater drilling service for Petrobras Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 20, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004

June 16, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Sakhalin Energy – Signing of project finance contract Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 1

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Sakhalin Energy – Signing of project finance contract Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 16, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0

June 13, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Announce Additional Investment in Vale Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 13, 20

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Announce Additional Investment in Vale Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 13, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 J

June 5, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 89th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 89th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 5, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-k

June 5, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report The fiscal year ended March 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 5,

Form 6-K Table of Contents FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 27, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell the whole shares in Kokusai Oil & Chemical Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the m

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell the whole shares in Kokusai Oil & Chemical Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 27, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku

May 22, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of Tender Offer announced by Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 22, 2008

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of Tender Offer announced by Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 22, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japa

May 22, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of Merger of Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 22, 2008 Commission File

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of Merger of Subsidiary Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 22, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan (Addr

May 7, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mont

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 7, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyo

March 26, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Qatar Power Generation and Desalination Plant Project Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For th

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in Qatar Power Generation and Desalination Plant Project Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 26, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-ch

March 25, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Integrate its Steel Products Business in the USA Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of M

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Integrate its Steel Products Business in the USA Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 25, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-

March 10, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in LNG terminal project in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 10, 20

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Participation in LNG terminal project in Mexico Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 10, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 J

February 29, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of preferred stock issued by Japan Airline Corporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mo

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Acquisition of preferred stock issued by Japan Airline Corporation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 29, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-cho

February 29, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell its Shares of Toho Titanium Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Februar

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell its Shares of Toho Titanium Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 29, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 10

February 14, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 14, 200

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Changes of Directors and Executive Officers Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of February 14, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 10

February 4, 2008 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. __)* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) (CUSIP Number) December

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Mitsui & Co., Ltd. (Name of Issuer) Common Stock (Title of Class of Securities) 606827202 (CUSIP Number) December 31, 2007 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

January 31, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Kestrel Joint Venture to Develop New Mining Area Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 31,

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Kestrel Joint Venture to Develop New Mining Area Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 31, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-000

January 31, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Nine-Month Period Ended December 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 31, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

January 30, 2008 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Set up “Mitsui Bussan Metals Co., Ltd.” Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 30

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Set up “Mitsui Bussan Metals Co., Ltd.” Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 30, 2008 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-00

December 27, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Invest US$297 million for Robe River J/V Mine Development in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Invest US$297 million for Robe River J/V Mine Development in Western Australia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 27, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

December 4, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Interim Business Report First half of the fiscal year ending March 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 F

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Interim Business Report First half of the fiscal year ending March 31, 2008 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 4, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chom

December 4, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Semi-Annual Consolidated Financial Statements for the six-month period ended September 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Semi-Annual Consolidated Financial Statements for the six-month period ended September 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 4, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into E

November 16, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional investment in the Goro nickel cobalt project in New Caledonia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Additional investment in the Goro nickel cobalt project in New Caledonia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 16, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi

November 16, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to integrate 3 plastics and chemical products sales subsidiaries Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For t

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to integrate 3 plastics and chemical products sales subsidiaries Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 16, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi

November 6, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Six-Month Period Ended September 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 6, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Oh

October 29, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Ten Year Production Period Extension of Four Offshore Blocks in the Gulf of Thailand Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Ten Year Production Period Extension of Four Offshore Blocks in the Gulf of Thailand Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 29, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1

October 10, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Sales of stakes in Cable Net Companies Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 10, 2007 Comm

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Sales of stakes in Cable Net Companies Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 10, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004

October 5, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co. (U.S.A.) to Merge with Mitsui Steel Holdings Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of Oc

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co. (U.S.A.) to Merge with Mitsui Steel Holdings Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 5, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-

October 1, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire Additional Interest in Tangguh LNG Project, Indonesia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For t

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire Additional Interest in Tangguh LNG Project, Indonesia Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 1, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chi

September 26, 2007 EX-11.2

Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004

Exhibit 11.2 Business Conduct Guidelines for Employees and Officers of Mitsui & Co., Ltd. Enacted: January, 2001 Revised: April 2002 Revised: December 2002 Revised: April 2003 Revised: October 2004 These guidelines apply to all employees and officers of Mitsui & Co., Ltd. (the ?Company?). Whenever used in these guidelines, the expression ?Employees? includes officers and corporate auditors in addi

September 26, 2007 EX-13.1

/s/ SHOEI UTSUDA

Certification required by Rule 13a-14(b) and 18 U.S.C. Section 1350 Exhibit 13.1 CERTIFICATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, Chapter 63 of title 18, United States Code), each of the undersigned officers of Mitsui & Co., Ltd. (the “Company”), hereby certifies, to such officer’s knowledge, that the Company’s annual report on Form

September 26, 2007 EX-12.2

/s/ KAZUYA IMAI

Certification of the principal financial officer required by Rule 13a-14(a) Exhibit 12.

September 26, 2007 EX-11.1

Code of Ethics for Senior Financial Officers and Professionals

Exhibit 11.1 Code of Ethics for Senior Financial Officers and Professionals Article 1. The CEO (Chief Executive Officer), CFO (Chief Financial Officer) and other officers and/or senior professionals of the Company (categorized as ?Riji?, ?MT (Management)? and/or ?MS (Managerial Staff)? by the Working Regulations of the Company) who serve in finance, treasury, accounting, tax and/or financial risk

September 26, 2007 20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F ? REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended March 31, 2007 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES

September 26, 2007 EX-12.1

/s/ SHOEI UTSUDA

Certification of the principal executive officer required by Rule 13a-14(a) Exhibit 12.

July 31, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Set up “Mitsui & Co. Steel Ltd.” Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 31, 2007 Com

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Set up “Mitsui & Co. Steel Ltd.” Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 31, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-000

July 31, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Three-Month Period Ended June 30, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 31 , 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemac

June 29, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Receipt of a notice of tax assessment based on transfer pricing taxation in Japan Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Receipt of a notice of tax assessment based on transfer pricing taxation in Japan Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 29, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-c

June 6, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 88th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the 88th Ordinary General Meeting of Shareholders Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 6, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo

June 6, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report the fiscal year ended March 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 6,

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Business Report the fiscal year ended March 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 6, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-000

June 4, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Complete Steel Technologies Acquisition Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 4, 20

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Complete Steel Technologies Acquisition Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 4, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 1

May 22, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Purchase Additional Shares in Mitsui Chemicals Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Purchase Additional Shares in Mitsui Chemicals Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 22, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku,

May 21, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Participates in Yamaha Mortor Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 21, 2007

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Participates in Yamaha Mortor Co., Ltd. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 21, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japa

May 2, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Sell Shares in EBM to CVRD Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2, 2007 Commission

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Sell Shares in EBM to CVRD Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan

May 2, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mont

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Consolidated Financial Results for the Year Ended March 31, 2007 Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, To

May 1, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire U.S. Auto Finance Companies Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 1, 2007 Co

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire U.S. Auto Finance Companies Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 1, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan

April 27, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co. announces Strategic Alliance with Central Finance, Sumitomo Mitsui Financial Group in Consumer Finance Business Pursuant to Rule 13a-16 o

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui & Co. announces Strategic Alliance with Central Finance, Sumitomo Mitsui Financial Group in Consumer Finance Business Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 27, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation

April 24, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests certain Australian upstream oil & gas assets Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui divests certain Australian upstream oil & gas assets Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 24, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda

April 24, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell 51% Stake in Indian Iron Ore Company Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 24

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to sell 51% Stake in Indian Iron Ore Company Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 24, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tok

April 19, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Gazprom Enters Sakhalin II Project Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 19, 2007 Commission

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Gazprom Enters Sakhalin II Project Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 19, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-0004 Japan

April 5, 2007 DFAN14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant x Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

April 3, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer KOKUBU & CO., LTD. and MITSUI & CO., LTD. agree to enter into an equity alliance Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer KOKUBU & CO., LTD. and MITSUI & CO., LTD. agree to enter into an equity alliance Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 3, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtem

April 2, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire 19.9% Shares in Sims Group Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 2

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Acquire 19.9% Shares in Sims Group Limited Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 2, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku, Tokyo 100-00

March 30, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the Filing of a Petition by a Subsidiary to Commence Civil Rehabilitation Proceedings Pursuant to Rule 13a-16 or 15d-16 of the Securities Ex

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Notice of the Filing of a Petition by a Subsidiary to Commence Civil Rehabilitation Proceedings Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 30, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into Eng

March 29, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Combining of UK Power Generating Assets with International Power Plc. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Combining of UK Power Generating Assets with International Power Plc. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 29, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English) 2-1, Ohtemachi 1-cho

March 23, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Expand Capacity at Western Australian Iron Ore Joint Ventures with BHP Billiton Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange

Form 6-K FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui to Expand Capacity at Western Australian Iron Ore Joint Ventures with BHP Billiton Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 23, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant’s name into English)

March 8, 2007 6-K

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui invests US$ 30 million in Brightstar’s subsidiary for Southeast Asian Operation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Ac

FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui invests US$ 30 million in Brightstar?s subsidiary for Southeast Asian Operation Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 8, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemach

March 5, 2007 6-K/A

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Announces Secondary Offering of Shares in Telepark Corp. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the mon

FORM 6-K/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Private Issuer Mitsui Announces Secondary Offering of Shares in Telepark Corp. Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 5, 2007 Commission File Number 09929 Mitsui & Co., Ltd. (Translation of registrant?s name into English) 2-1, Ohtemachi 1-chome Chiyoda-ku,

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